1 #2 can crushed pineapple, undrained
1 box pistachio instant pudding
1 cup small marshmallows
1 small carton cool whip
2 tablespoons fine chopped nuts (optional)
Mix pineapple and pudding mix together until well blended. Fold in cool whip and marshmallows. Stir in nuts.
*Note: This may be used immediately or refrigerated overnight. It can also be frozen.